In Craig Howard's article Web 2.0 sites for collaborative self-access: The learning advisor vs. Google® in the Studies in Self-Access Learning (SiSAL) Journal, Howard discusses collaborative self-access language learning. While he mentions that it is not quite new, he lists the different names it has appeared under: internet-mediated language learning, long distance CMC, and collaborative exchanges to name a few. Collaborative language learning seems to be one form of personalized learning. One can personalize it according to age, level, target language, native language, etc For instance, if I am a native English speaker and my target language is Arabic, I may need to practice not only grammar and writing, but pronunciation as well. In Arabic, there are many "initially doubled consonants". For example, "sh" in Arabic is one letter: ش and so one.
Before, language learning was more about joining a language learning class at a language center or buying software that cost upwards of $100, such as Berlitz and Rosetta Stone. Now, we have open access to language learning websites, many free of charge. Having previously visited some of English language learning websites, I have decided to list a few that may be of use to the readers:
1. BBC Languages: http://www.bbc.co.uk/languages/
2. Babbel: http://www.babbel.com/
3. English Central: http://www.englishcentral.com/
4. EnglishPod: http://englishpod.com/
5. iTalkie: http://www.italki.com/
6. Livemocha: http://www.livemocha.com/
Let's hope they may be useful to you!